Never heard of any other proximity fuse being used in WWII besides the 5" one, but if we believe wikipedia the Germans had 88mm prototypes. Then there is the 3"/50 from right after the war, which was the smallest calibre that could take contemporary VT fuses. However, this is a 1945 design and with the rapid rate of technological advancement, I'm not sure whether a 3" fuse could have been available mid-war.
Ah, I was wondering if I hadn't forgotten something, since neither the US Army or the Brits had 5" AA on land...Well, there was the 90mm AAA gun which was used effectively against V-1.
Unless you mean for USN guns where I think you are right and I' spreading false info......![]()
Ah, I was wondering if I hadn't forgotten something, since neither the US Army or the Brits had 5" AA on land...
Ah, I was wondering if I hadn't forgotten something, since neither the US Army or the Brits had 5" AA on land...
So - 57mm could have the fuse fitted to it even in the early days, though it probably was not yet compact enough to allow much if any HE filling.In order to improve facilities for recovery firing, a test field was set up at Stump Neck, Maryland, where a 57mm gun was mounted for recovery firing. This gun was selected because it was the smallest gun which fired a projectile large enough to contain a fuze of the size necessary to accommodate the required components.
The article is naval-focussed so the 3.7 seems not to be specifically mentioned, but there is mention of VT fuses for the naval 4inch.As development of the Mk 45 fuze progressed, it became apparent that would be desirable to utilize this fundamental design in certain of the U. S. Navy fuzes. This fuze was the first fuze small enough to be included in the U. S. Navy 3"/50 projectile. Consequently, a Mk 45 fuze was produced for the 3"/50 in about May of 1944. This fuze was delivered to the Fleet, but was never very satisfactory and its production was ultimately discontinued. A new fuze, known as the Mk 58, was designed for the 3"/50 which contained more or less the standard Mk 45 design with the addition of a wave suppression feature to permit use of this fuze low over waves. The Mk 58 fuze was delivered to the Fleet in November 1944.
Not sure the source is reliable, but I've heard of 40mm with them...
In WWII? Today you have the 3P fuse for the 40mm Bofors guns, but that is made possible by the modern miniaturisation of electronics.Not sure the source is reliable, but I've heard of 40mm with them...
To my knowledge they did not use them on land until the Battle of the Bulge. I don't know what gun they used then. They were afraid of the enemy getting them. The navy used the most of them.